Guam country code (+1) — formats & examples
Use +1 to call Guam. See number formats, common mistakes, and plan the best time to call.
Calling format
- Country code+1
- Mobile format pattern+1 XXX XXX XXXX
- Landline format pattern+1 XX XXXX XXXX
- NotesOmit leading 0 when using country code; include area code where applicable.
Valid number patterns
Valid mobile number pattern
+1 XXX XXX XXXX
e.g. +1 671 300 1234
Valid landline number pattern
+1 XX XXXX XXXX
Dialing information
- Country code+1
- LanguagesEnglish
- Time zonesPacific/Guam
- Phonecall rate$0.11/min
Landline $0.11/minMobile $0.11/min
Call Guam from your browser at low rates. No app or SIM required.
Start a callCommon dialing mistakes for Guam
- Forgetting to dial +1 before the local number - international calls to Guam require the country code.
- Keeping the leading zero when dialing from abroad - drop the leading 0 after the country code +1.
- Mixing up mobile and landline formats - Guam numbers differ in length and structure; check the pattern before dialing.
- Calling outside local business hours - check Guam's time zone to avoid very early or late calls.
- Omitting the country code when calling from another country - always use +1 for Guam.
Frequently asked questions
Common questions about calling Guam with the +1 country code.
- What languages are spoken in Guam?
- In Guam, the main languages spoken are English.
- Which time zones does Guam use?
- Guam has the following time zones: Pacific/Guam. Make sure to check local time before placing your call.
- What is an example of a mobile or landline number in Guam?
- A typical mobile number format is: +1 123456789. A landline number might look like: +1 12345678. Omit any leading 0.
- Are there any special tips for calling Guam internationally?
- Remember to take into account the time zones in Guam, and the fact that primary languages are English. Dial +1 before the local number.
- How much does it cost to call Guam?
- Calling Guam with Phonecall starts from $0.11/min for landlines and $0.11/min for mobile numbers. We show the rate before you dial.
- What is the calling code for Guam?
- The calling code for Guam is +1. To call, start with the international access code, then dial +1 followed by the local number.
Call planning
Check local time in Guam and your location so you call at a good time.
Time zones in Guam
Pacific/Guam
Best times to call are typically 9 AM – 5 PM local time in Guam. Avoid calling during early morning (before 8 AM) or late evening (after 9 PM) local time.